CN102452724B - Composite corrosion and scale inhibitor and its application in water treatment - Google Patents
Composite corrosion and scale inhibitor and its application in water treatment Download PDFInfo
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- CN102452724B CN102452724B CN201010512448.3A CN201010512448A CN102452724B CN 102452724 B CN102452724 B CN 102452724B CN 201010512448 A CN201010512448 A CN 201010512448A CN 102452724 B CN102452724 B CN 102452724B
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F14/00—Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes
- C23F14/02—Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes by chemical means
Abstract
The invention relates to a composite corrosion and scale inhibitor and application thereof. The composite corrosion and scale inhibitor comprises a) two different salts selected from the group consisting of water-soluble borate, water-soluble gluconate and water-soluble silicate, b) at least one organic phosphonic acid and c) at least one scale inhibition and dispersion agent, wherein the scale inhibition and dispersion agent is a polymer containing carboxylic groups. The composite corrosion and scale inhibitor provided in the invention has good comprehensive performance, an excellent effect on inhibiting CaCO3 scale, strong capability in stabilizing Zn<2> in water and good corrosion inhibition, is applicable to treatment of circulating cooling water and uses a small amount of organic phosphonic acid, thereby reducing harm to environment caused by discharge of phosphorus.
Description
Technical field
The present invention relates to a kind of composite scale-inhibiting corrosion inhibitor and application thereof, relate in particular to a kind of composite slow-corrosion scale resistor and the application in circulating cooling water treatment thereof.
Background technology
Inhibition, scale inhibition and microbiological manipulation are the large problems of circulating water treatment to be solved three, and microbiological manipulation realizes by adding sterilant, and inhibition and scale inhibition are solved by composite scale-inhibiting corrosion inhibitor formula.Different water quality, composite scale-inhibiting corrosion inhibitor problem to be solved is different, to low hard, low buck matter, adopts nature pH value operation process, and water treatment formula emphasis solves inhibition problem, generally adopts phosphoric acid salt+organic phosphine+co-polymer of sulfonate+zinc salt formula.To hard, the high-alkali water quality of height, according to the difference of water technology and difference, a kind of is to adjust pH technique, and adjusting the basic ideas of pH process operation is with adding H
2sO
4method carry out the pH value of controlled circulation water, reduce the basicity in recirculated water, and then prevent scaling; Increase inhibiter in formula and the consumption of dispersion agent, the etching problem of emphasis resolution system, generally adopts organic phosphine+co-polymer of sulfonate+zinc salt formula simultaneously.These two kinds formula keys are phosphoric acid salt and the zinc salts in stable circulation water; Adjust pH technique, does not mainly solve scale inhibition problem, generally adopts organic phosphine to add multipolymer and depending on particular case, adds the formula of zinc salt.
Water quality to medium hardness, basicity, adopts pH value naturally to move formula conventionally, and system pH value can reach 9.0, the general organic phosphine that adopts adds the formula containing carboxylic acid group polymer, formula stresses scale inhibition, requires to move under certain cycles of concentration, has advantages of that scale inhibition effect is good, erosion rate is low.But, if improve cycles of concentration, save fresh water consumption, be just difficult to achieve the goal.
Above-mentioned several formula, can solve for different water quality different problems, but all has a higher problem of total phosphorus concentration, strict along with national environmental standard, and phosphorus discharge is also restricted day by day, and low-phosphorous or without phosphorus formula more and more comes into one's own.Sunmorl N 60S is a kind of multi-hydroxy carboxy acid's type inhibiter, not phosphorous in molecular formula, can be used as the water quality stabilizer of recirculated water.Sunmorl N 60S, as being applied as a kind of natural organic water treatment agent, is used this product can not cause any direct or indirect harm to the mankind and environment, but this product is used separately the dosage needing high, is the nutrition source of microorganism.
(borax-Sunmorl N 60S inhibiter is the synergistic slow corrosion effect to carbon steel in neutral medium for Yuan Wanzhong etc., chemical industry corrosion and protection, 1992,3:31～33) using Sunmorl N 60S and sodium tetraborate composite as carbon steel corrosion inhibitor, only use this two kinds of inhibiter, working concentration reaches 1000mg/L, and concentration is higher, and formula do not there is scale-inhibiting properties, be used in circulating cooling water treatment defectiveness.
(the research of poly-epoxy succinic acid and compound anticorrosion-antiscaling property thereof such as Chen Yingmin, Treatment of Industrial Water, 2009,7:21～24) for power plant circulating cooling water water quality, studied the complex role of poly-epoxy succinic acid (PESA) with Sunmorl N 60S and other medicament, result shows: for condenser copper material (HSn-70A), and 10mg/LPESA+0.5mg/L benzotriazole (BTA)+2mg/LZn
2++ 10mg/L Sunmorl N 60S, the corrosion rate of copper is only 0.0005mm/a.This is studied for copper material, and is the uncomfortable pH operation of high hard high-alkali water quality, only considers corrosion condition.
Summary of the invention
Contriver studies discovery: between borate, gluconate and silicate, have inhibition synergism, combination of two can reduce the usage quantity of single medicament, has the performance that effectively suppresses calcium phosphate scale, zinc dirt and disperse calcium carbonate scale with organic phospho acid and containing carboxylic acid-based copolymer's dirt dispersion agent composition compound prescription.While being applied to circulating water treatment, can reduce the add-on of organic phospho acid.
The object of the present invention is to provide a kind of composite slow-corrosion scale resistor.
Another object of the present invention is composite scale-inhibiting corrosion inhibitor of the present invention to be applied to circulating cooling water treatment.
For achieving the above object, the invention provides the composite scale-inhibiting corrosion inhibitor that is applicable to circulating cooling water treatment, it is by two kinds of inhomogeneous salt that a) are selected from borate, gluconate and silicate; B) at least one organic phospho acid; C) at least one dirt dispersion agent forms, and described dirt dispersion agent is for containing carboxylic acid group polymer.
Consider price factor, in the situation that effect is close, the general particular certain cancers corrosion inhibiting and descaling agent of the present invention.
Borate of the present invention is selected from Sodium Tetraborate and potassium borate, preferably from Sodium Tetraborate, more preferably from sodium borate decahydrate, four hydration eight Sodium Tetraboratees and five hydration sodium tetraborates.Described gluconate is selected from Sunmorl N 60S, Potassium Gluconate and Zinc Gluconate.Described silicate is selected from water glass, Starso, potassium metasilicate and potassium silicate, preferably from Starso.
Organic phospho acid of the present invention is selected from 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, Amino Trimethylene Phosphonic Acid, 2-phosphonate group-1,2,4-butane tricarboxylate, hydroxyethylidene diphosphonic acid guanidine-acetic acid, ethylene diamine tetra methylene phosphonic acid, diethylene triamine pentamethylene phosphonic, to two phosphono and sulfonics, glycine two methylenephosphonic acids, L-glutamic acid two methylenephosphonic acids, thionamic acid two methylenephosphonic acids and taurine two methylenephosphonic acids, polyether-based polyamino methylene phosphonic acid.
Of the present invention is homopolymer containing carboxylic acid group polymer, copolymer or terpolymer, be preferably at least one and be selected from poly aspartic acid, poly-epoxy succinic acid, polyacrylic acid, polymaleic anhydride, vinylformic acid (AA)/Propylene glycol monoacrylate (HPA) multipolymer (being called for short T225), vinylformic acid/Propylene glycol monoacrylate/methyl acrylate copolymer, toxilic acid (acid anhydride)/Styrene Sulfonic Acid Copolymer, vinylformic acid/Styrene Sulfonic Acid Copolymer, acrylate/Styrene Sulfonic Acid Copolymer, toxilic acid (acid anhydride)/allyl sulphonic acid multipolymer, vinylformic acid/allyl sulphonic acid multipolymer, vinylformic acid/vinyl sulfonic acid multipolymer, vinylformic acid/2-methyl-2 '-acrylamido propane sulfonic acid (AMPS) multipolymer, acrylic acid/acrylamide/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer, acrylic acid/esters/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer, vinylformic acid/toxilic acid/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer, vinylformic acid/2-acrylamido-2-methylpropanephosphonic acid/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer.Wherein said acrylate is preferably from vinylformic acid C1-8 ester, more preferably from methyl acrylate, ethyl propenoate, Propylene glycol monoacrylate.
Composite slow-corrosion scale resistor is with respect to pending aqueous solution total amount, the effective concentration of each component is: borate (take tetraboric acid root) is 10-40mg/L, gluconic acid salt concn is 10-60mg/L, silicate (take silicon-dioxide) concentration is 10-60mg/L, organic phospho acid concentration is 2-4mg/L, containing carboxylic acid group polymer's concentration, is 2-20mg/L.
While using equipment made of copper in recirculating cooling water system, composite slow-corrosion scale resistor also can contain heterogeneous ring compound as copper material corrosion inhibitor, described copper material corrosion inhibitor is preferably mercaptobenzothiazole or benzotriazole, and the effective concentration of copper material corrosion inhibitor is 0.5-1.5mg/L.
When composite scale-inhibiting corrosion inhibitor is used for to recirculated cooling water, also can contain zinc salt as inhibiter, described zinc salt is preferably zinc sulfate or zinc chloride.With respect to pending aqueous solution total amount, the effective concentration of zinc salt is (with Zn
2+meter) be 0.5-3.0mg/L.
Available ordinary method is prepared composite scale-inhibiting corrosion inhibitor, the reinforced order of each component is unimportant, for example can, by mixing in predetermined ratio containing carboxylic acid group polymer, borate, gluconate, silicate, zinc salt, organic phospho acid and copper material corrosion inhibitor (if any) and water, can make required composite scale-inhibiting corrosion inhibitor.
Composite slow-corrosion scale resistor good combination property of the present invention, it has good resistance CaCO
3dirt performance, also has and well stablizes Zn in water
2+ability and corrosion inhibition, be applicable to circulating cooling water treatment.In addition, in composite scale-inhibiting corrosion inhibitor of the present invention, the consumption of organic phospho acid is few, can reduce the harm of phosphorus discharge to environment.
Composite slow-corrosion scale resistor of the present invention can be applicable to circulating cooling water treatment, and being particularly suitable for calcium hardness and total alkalinity sum is high rigidity more than 300mg/L, the situation that high alkalinity water quality adopts acid adding adjust pH technique.
For calcium hardness and total alkalinity sum, be the soft below 100mg/L, low basicity water quality, its subject matter that will solve is also inhibition problem, and same, composite scale-inhibiting corrosion inhibitor of the present invention is also applicable to the processing of this recirculated cooling water.
Embodiment
The following examples will contribute to illustrate the present invention, but not limit to its scope.
Following embodiment 1-10 and comparative example 1-4 test raw water quality used is in Table 1.
Table 1 test raw water quality
| Water quality | Ca 2+ | Total alkalinity | Total hardness | Cl - | SO 4 2- | PH | Specific conductivity | Total molten solid |
| Former water 1 | 245 | 365 | 323 | 71 | 106 | 7.6 | 998 | 713 |
| Former water 2 | 22 | 30 | 35 | 8 | 9 | 7.1 | 97 | 65 |
Note: 1) pHWu unit, specific conductivity is μ s/cm, its counit is mg/L, Ca
2+, total alkalinity, total hardness be all with CaCO
3meter, lower same;
2), Ca
2+represent calcium hardness, lower same.
The measuring method of water quality is with reference to as follows:
Ca
2+: the mensuration complexometry > > of GB/T 6910-2006 < < boiler feed water and water coolant analytical procedure calcium
Zn
2+: the mensuration zincon spectrophotometry > > of GB/T10656-2008 < < boiler feed water and water coolant analytical procedure zine ion
The Reliable Evaluating Methods of Their Performance of the composite scale-inhibiting corrosion inhibitor of following embodiment gained is as follows:
Resistance calcium carbonate scale performance is got the former water of test, add the drug concentration adding by embodiment, evaporation concentration in 80 ± 1 ℃ of waters bath with thermostatic control, to cycles of concentration (test in table 1 former water 2 to 5 times of cycles of concentration, test former water 1 to 4 times of cycles of concentration), remains Ca in sampling analysis water
2+concentration, make blank sample simultaneously, and calculate scale inhibition performance.
Scale inhibition performance calculation formula is: scale inhibition performance=(C-C0)/(nC1-C0) * 100%
C: actual measurement Ca
2+concentration (mg/L)
C0: the Ca of blank sample
2+concentration (mg/L)
C1: the Ca in former water
2+concentration (mg/L)
N: be cycles of concentration
Stablize zinc salt performance and get distilled water preparation Ca
2+concentration is 250mg/L, and basicity is 250mg/L and Zn
2+for the test water of 5mg/L, add the medicament of the drug concentration adding by embodiment, standing 10h in 80 ± 1 ℃ of waters bath with thermostatic control, remains Zn in sampling analysis water
2+concentration, make blank sample simultaneously, and calculate resistance zinc rate.
Resistance zinc rate calculation formula is: resistance zinc rate=(C-C0)/(C1-C0) * 100%
C: actual measurement Zn
2+concentration (mg/L)
C0: the Zn of blank sample
2+concentration (mg/L)
C1: the Zn in former water
2+concentration (mg/L)
Resistance zinc rate is higher, and the stability of zinc salt in water is better, illustrates that medicament is stablized the performance of zinc salt better.
Corrosion inhibition is fixed on the test piece of 20# qualitative carbon steel on lacing film instrument, puts into be added with the test water of the drug concentration adding by embodiment (the former water 2 of test of table 1 is concentrated into 5 times, and adjust pH forms corrosion inhibition test water 2; Test former water 1 and be concentrated into 4 times, and adjust pH value for 7.8-8.2, form corrosion inhibition test water 1) in, 40 ± 1 ℃ of steady temperatures, keep rotating speed 75rpm rotation 72h, and before and after record test, the weight of test piece, calculates average corrosion rate.
Average corrosion rate calculation formula is: F=(C * Δ W)/(A * T * ρ)
C: computational constant, take mm/a (millimeter/year) during as unit, C=8.76 * 107
Δ W: the corrosion weight loss of test specimen (g)
A: the area (cm of test specimen
2)
T: corrosion test time (h)
ρ: the density (kg/m of material for test
3)
The resistance calcium carbonate scale performance of following embodiment and comparative example is first in the former water of test, to add medicament, reconcentration, corrosion inhibition is the former water of first concentration test, forms test water, in test water, add medicament again, but the add-on of medicament all to take the amount of the test water after concentrating be benchmark.Take while testing former water 1 as basis survey corrosion inhibition, need adjust pH.
Embodiment 1
Take respectively 12.0g Sunmorl N 60S, 66.9g five hydration sodium tetraborates, 60.0g solid content is vinylformic acid/Propylene glycol monoacrylate/methyl acrylate (MA) multipolymer of 30% (Limiting Viscosity is 0.078dl/g 30 ℃ time, AA/HPA/MA=60/20/20 (weight ratio, lower with)), active ingredient is 50% 2-phosphonate group-1,2,4-butane tricarboxylate (PBTCA) 5.0g, adds 56.1g water, shake up, obtain the 200.0g medicament of required preparation.
With the medicament preparing by the drug concentration of 200mg/L when adding in the former water of test 1 and the former water 2 of test and corrosion inhibition test water 1 (being 7.9 with sulfuric acid adjust pH) and test water 2, the effective concentration of the sour sodium of aqueous humor glucose, five hydration sodium tetraborates, PBTCA and vinylformic acid/Propylene glycol monoacrylate/methyl acrylate copolymer is respectively 12mg/L, 35mg/L, 2.5mg/L and 18mg/L.
Embodiment 2
Take 30.5g anhydrous sodium metasilicate, (Limiting Viscosity is 0.074dl/g to vinylformic acid/2-methyl-2 of 55.0g Sunmorl N 60S, 33.3g 30% '-acrylamido propane sulfonic acid copolymer 30 ℃ time, AA/AMPS=70/30), active ingredient is 50% HEDP7.0g, join in 74.2g water, shake up, obtain the 200.0g liquid medicine of required preparation.
With the liquid medicine preparing by the drug concentration of 200mg/L when adding in test former water 1 and corrosion inhibition test water 1 (being 8.0 with sulfuric acid adjust pH), the effective concentration of anhydrous sodium metasilicate, Sunmorl N 60S, HEDP and vinylformic acid/2-methyl-2 in water '-acrylamido propane sulfonic acid copolymer is respectively 15mg/L, 55mg/L, 3.5mg/L and 10mg/L.
Embodiment 3
Take 36.9g sodium borate decahydrate, 194.1g (Limiting Viscosity is 0.074dl/g to methyl acrylate/Styrene Sulfonic Acid Copolymer of metasilicate pentahydrate sodium, 13.3g 30% 30 ℃ time, MA/ styrene sulfonic acid=80/20), active ingredient is 50% glycine two methylenephosphonic acid 7.0g, join in 148.7g water, shake up, obtain the 400.0g liquid medicine of required preparation.
With the liquid medicine preparing by the drug concentration of 400mg/L when adding in test former water 1 and corrosion inhibition test water 1 (being 8.1 with sulfuric acid adjust pH), in water, the effective concentration of sodium borate decahydrate, metasilicate pentahydrate sodium, glycine two methylenephosphonic acids and methyl acrylate/Styrene Sulfonic Acid Copolymer is respectively 15mg/L, 55mg/L, 3.5mg/L and 4mg/L.
Embodiment 4
Take 30.0g Sunmorl N 60S, 37.5g five hydration sodium tetraborates, 10.0g solid content is that (Limiting Viscosity is 0.078dl/g to 40% poly-epoxy succinic acid (number-average molecular weight is 800) and the 30.0g solid content vinylformic acid/toxilic acid/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer that is 30% 30 ℃ time, AA/MA/AMPS=70/15/15), solid content is 40% hydroxyethylidene diphosphonic acid guanidine-acetic acid 7.5g, join in 85.0g water, shake up, obtain the 200.0g liquid medicine of required preparation.
With the liquid medicine preparing by the drug concentration of 200mg/L when adding in the former water of test 1 and the former water 2 of test and corrosion inhibition test water 1 (being 8.2 with sulfuric acid adjust pH) and test water 2, the effective concentration of the sour sodium of aqueous humor glucose, five hydration sodium tetraborates, poly-epoxy succinic acid, vinylformic acid/toxilic acid/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer and hydroxyethylidene diphosphonic acid guanidine-acetic acid is respectively 30mg/L, 20mg/L, 4mg/L, 9mg/L and 3mg/L.
Embodiment 5
Take 40.0g Zinc Gluconate, 79.7g tetra-hydration eight Sodium Tetraboratees, (Limiting Viscosity is 0.078d l/g to acrylic acid/acrylamide/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer that 10.0g solid content is 40% poly aspartic acid (number-average molecular weight is 3000), 20.0g solid content is 30% 30 ℃ time, AA/ acrylamide/AMPS=70/15/15), active ingredient is 50% HEDP4.0g and PBTC 3.0g, 4.4g Zinc Sulphate Heptahydrate, join in 38.9g water, shake up, obtain the 200.0g liquid medicine of required preparation.
With the liquid medicine preparing by the drug concentration of 200mg/L when adding in the former water of test 1 and the former water 2 of test and corrosion inhibition test water 1 (being 7.8 with sulfuric acid adjust pH) and test water 2, the sour zinc of aqueous humor glucose, four hydration eight Sodium Tetraboratees, poly aspartic acid, acrylic acid/acrylamide/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer, HEDP, PBTC and Zn
2+effective concentration be respectively 40mg/L, 30mg/L, 4mg/L, 6mg/L, 2mg/L, 1.5mg/L and 1mg/L.
Embodiment 6
Take 50.0g Potassium Gluconate, 53.0g metasilicate pentahydrate sodium, 50.0g solid content is that (Limiting Viscosity is 0.072dl/g 30 ℃ time for vinylformic acid/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer of 30%, AA/AMPS=80/20), active ingredient is 40% Amino Trimethylene Phosphonic Acid 3.0g and to two phosphono and sulfonic 4.0g, 8.8g Zinc Sulphate Heptahydrate, joins in 31.2g water and shakes up, and obtains the 200.0g liquid medicine of required preparation.
With the liquid medicine preparing by the drug concentration of 200mg/L when adding in the former water of test 1 and the former water 2 of test and corrosion inhibition test water 1 (being 8.0 with sulfuric acid adjust pH) and test water 2, aqueous humor glucose sour zinc, metasilicate pentahydrate sodium, vinylformic acid/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer, Amino Trimethylene Phosphonic Acid, the effective concentration of two phosphono and sulfonics and zine ion is respectively to 50mg/L, 15mg/L, 15mg/L, 1.2mg/L, 2mg/L and 2mg/L.
Embodiment 7
Take 36.9g sodium borate decahydrate, 121.9g anhydrous sodium metasilicate, 46.7g (Limiting Viscosity is 0.074dl/g to vinylformic acid/Styrene Sulfonic Acid Copolymer that solid content is 30% 30 ℃ time, AA/ styrene sulfonic acid=70/30), the taurine two methylenephosphonic acid 5.0g that active ingredient is 40%, the glycine two methylenephosphonic acid 4.0g that active ingredient is 40%, 5.2g zinc chloride, join in the water of 180.3g, shake up, obtain the 400.0g liquid medicine of required preparation.
With the liquid medicine preparing by the drug concentration of 400mg/L when adding in the former water of test 1 and the former water 2 of test and corrosion inhibition test water 1 (being 8.2 with sulfuric acid adjust pH) and test water 2, in water, the effective concentration of sodium borate decahydrate, anhydrous sodium metasilicate, vinylformic acid/Styrene Sulfonic Acid Copolymer, taurine two methylenephosphonic acids, taurine two methylenephosphonic acids and zine ion is respectively 15mg/L, 60mg/L, 14mg/L, 2mg/L, 1.6mg/L and 2.5mg/L.
Embodiment 8
Take 30.0g Potassium Gluconate, 53.1g tetra-hydration eight Sodium Tetraboratees, solid content is vinylformic acid/ethyl propenoate/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer of 30%, and (Limiting Viscosity is 0.072dl/g 30 ℃ time, AA/ ethyl propenoate/AMPS=70/15/15) (Limiting Viscosity is 0.072dl/g 30 ℃ time for 13.3g and 20.0g toxilic acid/allyl sulphonic acid multipolymer, toxilic acid/allyl sulphonic acid=70/30), 6.0g active ingredient is 40% L-glutamic acid two methylenephosphonic acids, 3.1g zinc chloride, join in 74.5g water, shake up, obtain the 200.0g liquid medicine of required preparation.
With the liquid medicine preparing by the drug concentration of 200mg/L when adding in test former water 1 and corrosion inhibition test water 1 (being 7.9 with sulfuric acid adjust pH), the effective concentration of the sour zinc of aqueous humor glucose, four hydration eight Sodium Tetraboratees, vinylformic acid/ethyl propenoate/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer, toxilic acid/allyl sulphonic acid multipolymer, L-glutamic acid two methylenephosphonic acids and zine ion is respectively 30mg/L, 20mg/L, 4mg/L, 6mg/L, 2.4mg/L and 1.5mg/L.
Embodiment 9
Take 30.0g Zinc Gluconate, 37.5g five hydration sodium tetraborates, solid content is that (Limiting Viscosity is 0.074dl/g 30 ℃ time for vinylformic acid/vinyl sulfonic acid multipolymer 20.0g of 30%, AA/ vinyl sulfonic acid=70/30), 20.0g (Limiting Viscosity is 0.072d l/g to vinylformic acid/Propylene glycol monoacrylate multipolymer that solid content is 30% 30 ℃ time, AA/HPA=70/30), 7.5g active ingredient is 40% ethylene diamine tetra methylene phosphonic acid, 1g benzotriazole, join in 81.9g water, shake up, obtain the 200.0g liquid medicine of required preparation.
With the liquid medicine preparing by the drug concentration of 200mg/L when adding in the former water of test 1 and the former water 2 of test and corrosion inhibition test water 1 (being 8.0 with sulfuric acid adjust pH) and test water 2, the effective concentration of the sour zinc of aqueous humor glucose, five hydration sodium tetraborates, vinylformic acid/vinyl sulfonic acid multipolymer, vinylformic acid/Propylene glycol monoacrylate multipolymer, ethylene diamine tetra methylene phosphonic acid and benzotriazole is respectively 30mg/L, 20mg/L, 6mg/L, 6mg/L, 3mg/L and 1mg/L.
Embodiment 10
Take 15.0g Potassium Gluconate, 79.7g tetra-hydration eight Sodium Tetraboratees, 26.7g solid content is that (Limiting Viscosity is 0.072d l/g 30 ℃ time for vinylformic acid/2-acrylamido-2-methylpropanephosphonic acid/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer of 30%, AA/2-acrylamido-2-methylpropanephosphonic acid/AMPS=70/15/15), 12.5g the polymaleic anhydride that solid content is 40% (number-average molecular weight 1000), active ingredient is 40% thionamic acid two methylenephosphonic acids and polyether-based polyamino methylene phosphonic acid and is 4.0g, 4.2g zinc chloride, join in 53.9g water, shake up, obtain the 200.0g liquid medicine of required preparation.
With the liquid medicine preparing by the drug concentration of 200mg/L when adding in test former water 1 and corrosion inhibition test water 1 (being 8.2 with sulfuric acid adjust pH), the effective concentration of the sour potassium of aqueous humor glucose, four hydration eight Sodium Tetraboratees, vinylformic acid/2-acrylamido-2-methylpropanephosphonic acid/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer, polymaleic anhydride, thionamic acid two methylenephosphonic acids, polyether-based polyamino methylene phosphonic acid and zine ion is respectively 15mg/L, 30mg/L, 8mg/L, 5mg/L, 1.6mg/L, 1.6mg/L and 2mg/L.
Embodiment 11
Take 63.0g five hydration potassium tetraborates, 61.3g sodium metasilicate, solid content is toxilic acid/Styrene Sulfonic Acid Copolymer of 30%, and (Limiting Viscosity is 0.073dl/g 30 ℃ time, MA/ styrene sulfonic acid=80/20) and vinylformic acid/Propylene glycol monoacrylate multipolymer (Limiting Viscosity is 0.072dl/g 30 ℃ time, AA/HPA=70/30) be respectively 13.3g and 40.0g, active ingredient is 40% diethylene triamine pentamethylene phosphonic 7.5g and mercaptobenzothiazole 0.8g, join in 114.1g water, shake up, obtain the 300.0g liquid medicine of required preparation.
With the liquid medicine preparing by the drug concentration of 300mg/L when adding in the former water of test 1 and the former water 2 of test and corrosion inhibition test water 1 (being 8.0 with sulfuric acid adjust pH) and test water 2, in water, the effective concentration of five hydration potassium tetraborates, sodium metasilicate, toxilic acid/Styrene Sulfonic Acid Copolymer, vinylformic acid/Propylene glycol monoacrylate, diethylene triamine pentamethylene phosphonic and mercaptobenzothiazole is respectively 30mg/L, 20mg/L, 4mg/L, 12mg/L, 3.0mg/L and 0.8mg/L.
Embodiment 12
Take 40g Potassium Gluconate, the positive potassium silicate of 124.0g, 16.7g solid content is that (Limiting Viscosity is 0.072dl/g 30 ℃ time for vinylformic acid/allyl sulphonic acid multipolymer of 30%, AA/ allyl sulphonic acid=70/30), active ingredient be 40% to two phosphono and sulfonic 5g, join in 14.3g water, shake up, obtain the 200.0g liquid medicine of required preparation.
With the liquid medicine preparing by the drug concentration of 200mg/L when adding in test former water 1 and corrosion inhibition test water 1 (being 8.0 with sulfuric acid adjust pH), aqueous humor glucose acid zinc, just potassium silicate, vinylformic acid/allyl sulphonic acid multipolymer, the effective concentration of two phosphono and sulfonics is respectively to 40mg/L, 30mg/L, 5mg/L and 2mg/L.
Embodiment 13
Take 42.3g five hydration potassium tetraborates, 122.5g sodium metasilicate, 10.0g the polyacrylic acid that solid content is 30% (number-average molecular weight 3000), 26.7g solid content is that (Limiting Viscosity is 0.072dl/g 30 ℃ time for acrylic acid/acrylamide/2-methyl-2 '-acrylamido propane sulfonic acid of 30%, AA/ acrylamide/AMPS=70/15/15), active ingredient is 40% thionamic acid two methylenephosphonic acids and hydroxyethylidene diphosphonic acid guanidine-acetic acid and is respectively 5.0g and 3.75g, join in 89.75g water, shake up, obtain the 300.0g liquid medicine of required preparation.
With the liquid medicine preparing by the drug concentration of 300mg/L when adding in test former water 1 and corrosion inhibition test water 1 (being 8.1 with sulfuric acid adjust pH), in water, the effective concentration of five hydration potassium tetraborates, sodium metasilicate, polyacrylic acid, thionamic acid two methylenephosphonic acids and hydroxyethylidene diphosphonic acid guanidine-acetic acid is respectively 20mg/L, 40mg/L, 3mg/L, 8mg/L, 2mg/L and 1.5mg/L.
Embodiment 14
Take 40.0g Sunmorl N 60S, 82.7g positive potassium silicate, 26.7g solid content is that (Limiting Viscosity is 0.072dl/g 30 ℃ time for vinylformic acid/Propylene glycol monoacrylate/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer of 30%, AA/HPA/AMPS=70/15/15), active ingredient is 40% Amino Trimethylene Phosphonic Acid 4.0g, join in 46.6g water, shake up, obtain the 200.0g liquid medicine of required preparation.
With the liquid medicine preparing by the drug concentration of 200mg/L when adding in the former water of test 1 and the former water 2 of test and corrosion inhibition test water 1 (being 8.0 with sulfuric acid adjust pH) and test water 2, the sour sodium of aqueous humor glucose, just the effective concentration of potassium silicate, vinylformic acid/Propylene glycol monoacrylate/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer and Amino Trimethylene Phosphonic Acid is respectively 40mg/L, 20mg/L, 8mg/L and 2mg/L.
Embodiment 15
Take 20.0g Zinc Gluconate, 189.0g non-hydrate sodium metasilicate, 13.3g solid content is that (Limiting Viscosity is 0.072dl/g 30 ℃ time for vinylformic acid/Propylene glycol monoacrylate/methyl acrylate copolymer of 30%, AA/HPA/MA=70/15/15), 20.0g solid content is that (Limiting Viscosity is 0.072dl/g 30 ℃ time for vinylformic acid/toxilic acid/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer of 30%, AA/MA/AMPS=70/15/15), active ingredient is 40% taurine two methylenephosphonic acids and ethylene diamine tetra methylene phosphonic acid and is 3.0g, join in 40.7g water, shake up, obtain the 300.0g liquid medicine of required preparation.
With the liquid medicine preparing by the drug concentration of 300mg/L to the former water of test 1 and test former water 2 and corrosion inhibition test water 1 (being 8.2 with sulfuric acid adjust pH) with test while adding in water 2, the effective concentration of the sour zinc of aqueous humor glucose, non-hydrate sodium metasilicate, vinylformic acid/Propylene glycol monoacrylate/methyl acrylate copolymer, vinylformic acid/toxilic acid/2-methyl-2 '-acrylamido propane sulfonic acid multipolymer, taurine two methylenephosphonic acids, ethylene diamine tetra methylene phosphonic acid is respectively 20mg/L, 40mg/L, 4mg/L, 6mg/L, 1.2mg/L and 1.2mg/L.
Embodiment 16
Take 49.8g sodium borate decahydrate, 76.9g potassium metasilicate, 50.0g solid content is that (Limiting Viscosity is 0.072dl/g 30 ℃ time for acrylic acid/acrylamide/2-methyl-2 '-acrylamido propane sulfonic acid of 30%, AA/ acrylamide/AMPS=70/15/15), active ingredient be 40% to two phosphono and sulfonic 7.5g, join in 115.8g water, shake up, obtain the 300.0g liquid medicine of required preparation.
With the liquid medicine preparing by the drug concentration of 300mg/L when adding in test former water 1 and corrosion inhibition test water 1 (being 8.0 with sulfuric acid adjust pH), sodium borate decahydrate, potassium metasilicate and acrylic acid/acrylamide/2-methyl-2 '-acrylamido propane sulfonic acid and the effective concentration of two phosphono and sulfonics is respectively to 20mg/L, 30mg/L, 15mg/L and 3mg/L in water.
Comparative example 1
(Limiting Viscosity is 0.078dl/g 30 ℃ time to take 30.0g solid content and be vinylformic acid/Propylene glycol monoacrylate/methyl acrylate copolymer terpolymer of 30%, AA/HPA/MA=70/15/15), 2-phosphonate group-1 that active ingredient is 50%, 2,4-butane tricarboxylate (PBTCA) 9.0g, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP) 9.0g, Zinc Sulphate Heptahydrate 8.8g, add in 43.2g water, shake up, obtain the 100.0g liquid medicine of required preparation.
With the liquid medicine preparing by the drug concentration of 100mg/L when adding in test former water 1 and corrosion inhibition test water 1 (being 8.0 with sulfuric acid adjust pH), the effective concentration of the terpolymer of AA/AMPS/HPA, PBTCA, HEDP and zine ion is respectively 9mg/L, 4.5mg/L, 4.5mg/L and 2mg/L.
Comparative example 2
(Limiting Viscosity is 0.078dl/g to acrylic acid/acrylamide/2-methyl-2 '-acrylamido propane sulfonic acid terpolymer that to take 40.0g Sunmorl N 60S, 50.0g solid content be 30% 30 ℃ time, AA/HPA/AMPS=70/15/15), 2-phosphonate group-1 that active ingredient is 50%, 2,4-butane tricarboxylate (PBTCA) 8.0g and 4.2g Zinc Chloride Anhydrous, add in 97.8g water, shake up, obtain the 200.0g liquid medicine of required preparation.
With the liquid medicine preparing by the drug concentration of 200mg/L when adding in the former water of test 1 and the former water 2 of test and corrosion inhibition test water 1 (being 8.2 with sulfuric acid adjust pH) and test water 2, Sunmorl N 60S, terpolymer, PBTCA and Zn
2+effective concentration be respectively 40mg/L, 15mg/L, 4mg/L, 2mg/L.
Comparative example 3
(Limiting Viscosity is 0.078dl/g to acrylic acid/acrylamide/2-methyl-2 '-acrylamido propane sulfonic acid terpolymer that to take 194.3g metasilicate pentahydrate sodium, 50.0g solid content be 30% 30 ℃ time, AA/HPA/AMPS=70/15/15), 2-phosphonate group-1 that active ingredient is 50%, 2,4-butane tricarboxylate (PBTCA) 8.0g and 4.2g Zinc Chloride Anhydrous, add in 43.5g water, shake up, obtain the 300.0g liquid medicine of required preparation.
With the liquid medicine preparing by the drug concentration of 300mg/L when adding in the former water of test 1 and the former water 2 of test and corrosion inhibition test water 1 (being 8.1 with sulfuric acid adjust pH) and test water 2, metasilicate pentahydrate sodium, terpolymer, PBTCA and Zn
2+effective concentration be respectively 55mg/L, 15mg/L, 4mg/L, 2mg/L.
Comparative example 4
Take 50.0g Sunmorl N 60S, 49.1g sodium borate decahydrate, joins in 100.9g water, shakes up, and obtains the 200g liquid medicine of required preparation.
With the liquid medicine preparing by the drug concentration of 200mg/L when adding in the former water of test 1 and the former water 2 of test and corrosion inhibition test water 1 (being 7.9 with sulfuric acid adjust pH) and test water 2, the effective concentration of the sour sodium of aqueous humor glucose, sodium borate decahydrate is respectively 50mg/L and 20mg/L.
By the above-mentioned concentration that adds, carry out static test, inhibition and scale inhibition effect are in Table 2.
The inhibition of table 2 medicament and scale inhibition effect
While * measuring scale-inhibiting properties and corrosion inhibition, the former water of the test described in showing of take is measured by preceding method as basic water.
Table 2 data declaration, composite scale-inhibiting corrosion inhibitor good combination property of the present invention, it has good resistance CaCO
3dirt function, also has Zn in satisfactory stability water
2+ability and corrosion inhibition, be applicable to the processing of recirculated cooling water.
Claims (23)
1. a composite slow-corrosion scale resistor, it is by a) Water-Soluble Glucose hydrochlorate and water-soluble silicate, or water-soluble borate and water-soluble silicate; B) at least one organic phospho acid; C) at least one dirt dispersion agent forms, described dirt dispersion agent is for containing carboxylic acid group polymer, effective concentration with respect to pending each component of aqueous solution total amount is: borate is counted 10-40mg/L with tetraboric acid root, gluconic acid salt concn is 10-60mg/L, silicate be take silicon-dioxide concentration as 10-60mg/L, organic phospho acid concentration is 2-4mg/L, containing carboxylic acid group polymer's concentration, is 2-20mg/L.
2. composite slow-corrosion scale resistor according to claim 1, is characterized in that described borate is selected from Sodium Tetraborate and potassium borate.
3. composite slow-corrosion scale resistor according to claim 2, is characterized in that described borate is selected from Sodium Tetraborate.
4. composite slow-corrosion scale resistor according to claim 3, is characterized in that described borate is selected from sodium borate decahydrate, four hydration eight Sodium Tetraboratees and five hydration sodium tetraborates.
5. composite slow-corrosion scale resistor according to claim 1, is characterized in that gluconate is selected from Sunmorl N 60S, Potassium Gluconate and Zinc Gluconate.
6. composite slow-corrosion scale resistor according to claim 1, is characterized in that silicate is selected from sodium metasilicate, Starso, potassium metasilicate and positive potassium silicate.
7. composite slow-corrosion scale resistor according to claim 6, is characterized in that silicate is selected from Starso.
8. composite slow-corrosion scale resistor according to claim 1, it is characterized in that described organic phospho acid is selected from 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, Amino Trimethylene Phosphonic Acid, 2-phosphonate group-1,2,4-butane tricarboxylate, hydroxyethylidene diphosphonic acid guanidine-acetic acid, ethylene diamine tetra methylene phosphonic acid, diethylene triamine pentamethylene phosphonic, to two phosphono and sulfonics, glycine two methylenephosphonic acids, L-glutamic acid two methylenephosphonic acids, thionamic acid two methylenephosphonic acids and taurine two methylenephosphonic acids and polyether-based polyamino methylene phosphonic acid.
9. composite slow-corrosion scale resistor according to claim 1, is characterized in that being selected from homopolymer, copolymer and terpolymer containing carboxylic acid group polymer.
10. composite slow-corrosion scale resistor according to claim 9, is characterized in that being selected from poly aspartic acid containing carboxylic acid group polymer, poly-epoxy succinic acid, polyacrylic acid, polymaleic anhydride, vinylformic acid/Propylene glycol monoacrylate multipolymer, vinylformic acid/Propylene glycol monoacrylate/methyl acrylate copolymer, toxilic acid (acid anhydride)/Styrene Sulfonic Acid Copolymer, vinylformic acid/Styrene Sulfonic Acid Copolymer, acrylate/Styrene Sulfonic Acid Copolymer, toxilic acid (acid anhydride)/allyl sulphonic acid multipolymer, vinylformic acid/allyl sulphonic acid multipolymer, vinylformic acid/vinyl sulfonic acid multipolymer, vinylformic acid/2-methyl-2'-acrylamido propane sulfonic acid multipolymer, acrylic acid/acrylamide/2-methyl-2'-acrylamido propane sulfonic acid multipolymer, acrylic acid/esters/2-methyl-2'-acrylamido propane sulfonic acid multipolymer, vinylformic acid/toxilic acid/2-methyl-2'-acrylamido propane sulfonic acid multipolymer and vinylformic acid/2-acrylamido-2-methylpropanephosphonic acid/2-methyl-2'-acrylamido propane sulfonic acid multipolymer.
11. composite slow-corrosion scale resistors according to claim 10, is characterized in that described acrylate is selected from vinylformic acid C
1-8ester.
12. composite slow-corrosion scale resistors according to claim 11, is characterized in that described acrylate is selected from methyl acrylate, ethyl propenoate, Propylene glycol monoacrylate.
13. according to the composite slow-corrosion scale resistor described in claim 1-12 any one, it is characterized in that described anti-incrustation corrosion inhibitor also contains heterogeneous ring compound as copper material corrosion inhibitor.
14. composite slow-corrosion scale resistors according to claim 13, is characterized in that described heterogeneous ring compound is as mercaptobenzothiazole or benzotriazole.
15. according to the composite slow-corrosion scale resistor described in claim 1-12 any one, it is characterized in that described anti-incrustation corrosion inhibitor also contains zinc salt.
16. composite slow-corrosion scale resistors according to claim 13, is characterized in that described anti-incrustation corrosion inhibitor also contains zinc salt.
17. composite slow-corrosion scale resistors according to claim 14, is characterized in that described anti-incrustation corrosion inhibitor also contains zinc salt.
18. composite slow-corrosion scale resistors according to claim 15, is characterized in that described zinc salt is zinc sulfate or zinc chloride.
19. composite slow-corrosion scale resistors according to claim 16, is characterized in that described zinc salt is zinc sulfate or zinc chloride.
20. composite slow-corrosion scale resistors according to claim 17, is characterized in that described zinc salt is zinc sulfate or zinc chloride.
21. composite slow-corrosion scale resistors according to claim 13, is characterized in that the effective concentration with respect to pending aqueous solution total amount copper material corrosion inhibitor is 0.5-1.5mg/L.
22. composite slow-corrosion scale resistors according to claim 15, is characterized in that effective concentration with respect to pending aqueous solution total amount zinc salt is with Zn
2+count 0.5-3.0mg/L.
The application of the composite slow-corrosion scale resistor described in 23. claim 1-22 any one, is characterized in that the composite slow-corrosion scale resistor described in claim 1-22 any one is applicable to circulating cooling water treatment.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050053A (en) * | 1989-09-05 | 1991-03-20 | 冶金工业部北京钢铁设计研究总院 | The Si series corrosion inhibitor of closed cycle treatment of cooling water |
| CN1109030A (en) * | 1994-12-29 | 1995-09-27 | 张友兴 | Corrosion inhibitor for coolant of diesel locomotives |
| CN101412565A (en) * | 2008-11-28 | 2009-04-22 | 武汉海力科技化工有限公司 | Efficient scale corrosion inhibitor for carbon steel system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0324238D0 (en) * | 2003-10-16 | 2003-11-19 | Rhodia Consumer Specialities L | Formulation for corrosion and scale inhibition |
| CN100509654C (en) * | 2004-08-31 | 2009-07-08 | 中国石化北京燕化石油化工股份有限公司 | Low-phosphorus composite antiincrustation corrosion inhibitor and use for water treatment |
| CN100460566C (en) * | 2005-12-27 | 2009-02-11 | 中国石油化工股份有限公司 | Molybdenum phosphine system composite anti-erosion anti-sludging agent and preparation method thereof |
| CN100441526C (en) * | 2006-09-07 | 2008-12-10 | 武汉钢铁(集团)公司 | Long effective environmental protection type corrosion inhibitor for inclosed recirculated cooling water |
-
2010
- 2010-10-20 CN CN201010512448.3A patent/CN102452724B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050053A (en) * | 1989-09-05 | 1991-03-20 | 冶金工业部北京钢铁设计研究总院 | The Si series corrosion inhibitor of closed cycle treatment of cooling water |
| CN1109030A (en) * | 1994-12-29 | 1995-09-27 | 张友兴 | Corrosion inhibitor for coolant of diesel locomotives |
| CN101412565A (en) * | 2008-11-28 | 2009-04-22 | 武汉海力科技化工有限公司 | Efficient scale corrosion inhibitor for carbon steel system |
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